Hard disk video and audio files N times with no loss?

Users questions: DVD and VCD piracy heard before, is copied N times, the effect worse, if the computer inside the video and audio files after copying the original file A file called B, If B is called out in the copy C, and so on Finally, it will copy the effect of N times to drop it? If the drive does not fall , Now there are a lot of flash disk (U disk, SD card these), and if copied to the flash drive, then copied several times in the transfer of flash disk, quality will drop it? I am not saying the brother downstairs CD copy ah, I put in the hard disk inside the hard disk from the A or A folder, copy to disk or with B B, a hard disk folder, then copy the file to another one B C C hard disk or the same hard disk folders, this is the case, is where the hard disk or flash drive to copy,
Experts answer: copies of digital files is through a lot of school experience, and ensure the original and the copy is exactly the same, but every time completely Copy 0 and 1, in theory, could be the reason why the wireless-copy effect of variation of pirated CDs will not because the process of re-replication errors, but when the pressure plate causes because the equipment. Before making a master disc to disc, this master plate is made of aluminum to sit, home plate after the suppression of many will be the loss of physical Therefore, the back of the front page of the complex than the stereotype that good, but piracy is the master disk to do with a genuine CD, so quality will be much worse. CD-ROM drives are now starting to do with the master disc, is completely digital, so it can produce a lot of times then there will be no loss
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